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AlertLog message

Hi

I have paste below a copy of the output of one of Alert.log
On that server I have 3 databases.
Each database has an ALERT.LOG file displaying the same message.
As you can see,
1/ Try to archive
2/ Fail to archive
3/ Archive successful

This is from Metalink: I had similar situations but needed the
additional arch process:

CAUSE
------

'Failed to archive log' messages appear in the alert log as multiple arch procresses are started
They are trying to start archiving of filled redo logs but as another arc process
already had started archiving them, other process faile and simply write a message in the alert log.

If you look atthe alert log , you will observe that, the arc process that starts archiving the log
is the process which eventually completes it

FIX
-------

This messages do not cause any problem to the working of database
Except that they fill up the alert log quite fast!!

If automatic archiving is turned on then the archiver process will also try
to archive this logfile, however will not be able to aquire the lock 'kcrrlt'
ie the lock to protect multiple arch processes from archiving the same logfile.

The failing process process will write to the trace/alert message that it was
unable to archive the logfile.